Tests were performed measuring the damage initiation loads and the loca tions, shapes, and sizes of delaminations in Fiberite T300/976 graphite/epoxy, Fiberite IM7/977-2 graphite-toughened epoxy, and ICI APC-2 graphite-PEEK plates subjected to transverse static loads. The data were compared to the results of the Finn-Springer model, and good agreements were found between the measured and calculated delamination lengths and widths.
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References
1.
Finn, S.R., G.S. Springer. (In press.) "Delaminations in Composite Plates under Transverse Static and Impact Loads—A Model," Composite Structures.
2.
Bostaph, G.M. and W. Elber.1983. "A Fracture Mechanics Analysis for Delamination Growth during Impact on Composite Plates," 1983Advances in Aerospace Structures, Materials, and Dynamics . NY: American Society of Mechanical Engineers, pp. 133-138.
3.
Sun, C.T. and M.G. Manoharan.1989. "Growth of Delamination Cracks Due to Bending in a [905/05/905] Laminate," Composites Science and Technology, Vol. 43, pp. 365-377.
4.
Poe, C.C. Jr.1988. "Simulated Impact Damage in a Thick Graphite/Epoxy Laminate Using Sphencal Indenters," NASA TM-100539.
5.
Poe, C.C. Jr.1990. "Relevance of Impacter Shape to Nonvisible Damage and Residual Tensile Strength of a Thick Graphite/Epoxy Laminate," NASA TM-102599.
6.
Starbuck, M.1990. "Damage States in Laminated Composite Three-Point Specimens—An Experimental/Analytical Correlation Study," Ph.D. Dissertation, Virginia Polytechnic Institute and State University .
7.
Sjoblom, P.O. , J.T. Hartness and T.M. Cordell.1988. "On Low-Velocity Impact Testing of Composite Laminates," Journal of Composite Materials , Vol. 22, pp. 30-52.
Gosse, J.H. and P.B.Y. Mori.1988. "Impact Damage Characterization of Graphite/Epoxy Laminates," Proceedings of the American Society for Composites, 3rd Technical Conference on Composite Materials, American Society for Composites, pp. 187-193.
10.
Gosse, J.H., P.B.Y. Mori and W.B. Avery.1988. "The Relationship between Impact-Induced Stress States and Damage Initiation and Growth in Composite Plates," Materials—Processes: The Intercept Point; 20th International SAMPE Technical Conference, Chess et al., eds., Society for the Advancement of Materials and Process Engineering , pp. 187-193.
